What your MOT doesn't check
An MOT is a safety check on the day, not a service. Here's what it leaves out.
Published 03/10/2026
An MOT confirms your car met minimum road safety and emissions standards on the day of the test. It is not a health check of the whole car.
What the MOT does not cover
- Engine, clutch and gearbox condition. The tester won't assess wear inside them.
- Oil level and quality. Old oil is one of the biggest causes of engine wear.
- Timing belt or chain. A snapped belt can wreck an engine, and it is never inspected.
- Coolant and antifreeze strength.
- Brake fluid condition. Brake performance is tested, but not the age of the fluid.
- Bodywork away from structural areas, and most electrics beyond lights and warning lamps.
What to do
Book a service alongside your MOT. Many member garages offer a combined price, and a service catches the wear an MOT ignores.
Related advice
How to prepare for your MOT in 10 minutes
Simple checks that avoid an easy fail.
How often should you service your car?
Time or mileage, whichever comes first, and why it matters.
Interim, full or major service: which do you need?
What each level of service includes and when to choose it.